Eulecanium tiliae(Linnaeus, 1758)

nut scale, brown gooseberry scale

polyphagous on woody plants

Eulecanium tiliae: scales on Quercus robur

Quercus robur, Biddinghuizen, Spijk- en Bremerbergbos, 21.vi.2019 © Hans Jonkman

Eulecanium tiliae: scales on Quercus robur

closer look

Eulecanium tiliae: female scale

© The Food and Environment Research Agency, from Malumphy & Kahrer (2011a)

parasite

Female with egg, oval, strongly convex, yellowish-brown to dark brown, shiny; up to 6.5 mm long and 6 mm wide. Fresh scales highly variable in colour, cream, pale yellow or reddish brown with irregular brown and reddish transverse bands.

host plants

Acer campestre, platanoides, pseudoplatanus; Aesculus hippocastanum; Betula; Carpinus betulus; Cercis siliquastrum; Cornus alba; Corylus avellana; Crataegus crus-galli, monogyna, rhipidophylla; Cydonia oblonga; Cytisus scoparius; Fagus sylvatica; Ficus carica; Fraxinus excelsior; Juglans regia; Malus domestica; Platanus orientalis; Populus nigra; Prunus domestica, dulcis, spinosa; Quercus petraea subsp. iberica, robur; Rubus sanctus; Salix; Tilia cordata, platyphyllos; Rosa; Ulmus glabra; Wisteria sinensis.

Most frequent on Rosaceae.

phenology

Univoltine; hibernation as second instar larva.

synonyms

Eulecanium, Lecanium, coryli (Linnaeus, 1758).

references

Ćwierzyk & Dziedzicka (1987a), Dziedzicka (1988a), Fetykó (2014a), Gómez-Menor Ortega (1960a, 1965a), Hellrigl (2004a), Jansen (1999b, 2013a), Japoshvili & Karaca (2002a), Koteja & Żak-Ogaza (1966a), Kozár, Guignard, Bachmann ao (1994a), Kozár & Ostafichuk (1987a), Malumphy (2010a), Malumphy & Kahrer (2011a), Malumphy & Ostrauskas (2009a), Malumphy, Ostrauskas & Pye (2008a, 2010a), Masten Milek, Seljak, Šimala ao (2016a), Salisbury, Halstead & Malumphy (2010a), Schmutterer & Hoffmann (2003a), Ülgentürk & Toros (1999a), ScaleNet (2018), Seljak (2010a), Trencheva, Gounari, Trenchev & Kapaxidi (2009a), Żak-Ogaza & Koteja (1964a).

mod 7.iii.2020